Thumb calculator vs CalcLog
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Thumb calculator
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A calculator that is easy to operate with just the thumb of one hand, even on large-screen smartphones. *Specially placed numeric keypad
CalcLog
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CalcLog - A visual calculator that records every step as a receipt tape. [Key Features] - Receipt Tape: Every equation and result stacks vertically for easy review. - Notes: Label any item so you remember what each number was for. - Strikethrough: Swipe to exclude items from the total. - Session Archive: Save calculation sets and reopen them anytime. - Scientific Mode: sin, cos, tan, ln, log and more scientific functions. - Live Grand Total: Running total always visible at the top. - Result Recall: Tap any previous result to load it into your input. - Dark Mode support. - 16 languages supported. - Privacy First: All data stays on your device. No ads, no tracking. [Perfect For] - Grocery shopping price tracking - Comparing quotes in meetings - Simple daily expense logging - Keeping records of engineering calculations Contact: helpdesk@redcandle.co.kr
Screenshots
Verdict
The clearest difference is ads: CalcLog at none against Thumb calculator's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Thumb calculator ships an update every 2 weeks, CalcLog every 3 weeks. The most recent releases landed on October 30, 2026 and October 18, 2026 respectively.
| Parameter | Thumb calculator | CalcLog |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Every 3 weeks |
| Ads | Yes | No โ better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.8.3 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 35 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | RedCandle Co.,Ltd. |
In-app purchases
Thumb calculator
No in-app purchases
CalcLog
No in-app purchases
Questions
Is Thumb calculator free?
Is CalcLog free?
Do Thumb calculator or CalcLog have ads?
Which is updated more often, Thumb calculator or CalcLog?
Other comparisons
